Nailing-machine.



J. LEE.

NAILIN G MACHINE. APPLICATION FILED JULY 14, 1909.

1 ,OO0,023, Patented Aug. 8, 1911.

COLUMBIA PLANOCIRAPH cO.,wAsHlNuTDN D C JbB LEE, OF KETTERING, ENGLAND.

NAILING-MACHINE.

Specification of Letters Patent.

Patented Aug. 8, 1 911.

Application filed July 14, 1909. Serial No. 507,636.

To all whom it may concern:

Be it known that 1, Joe LEE, a subject of the King of Great Britain,residing at Kettering, Northampton, England, have invented new anduseful Improvements in or Relating to Nailing-Machines, of which thefollowing is a specification.

This invention relates to nailing machines such as are used in themanufacture of boots and shoes and of the type in which loose nails arecontained within a hopper from whence they are delivered into a racedown which they pass to the usual driver of the machine, the end nail inthe race being separated from the others by a divider or selector, whichintroduces the selected nail to the driver and keeps the following nailsseparated therefrom.

The present invention embodies improvements particularly, though notexclusively, applicable to machines for use with bills or studs, and itincludes a curved raceway fitted on the front of the machine and leadingfrom the nail hopper to the driver.

The principal advantage in a curved race is that headed bills(particularly those in which the length of the head is coincident withthe width of the shank) receive a turn around or part rotation in theirpassage from the hopper to the driver and thus present the head to thedriver so that the bills or nails when driven into a heel, top piece orsole have their heads pointing to the center of the same. Further acurved race gives an increased length thereto within a given space andallows of a greater accumulation of rivets or bills therein which isalways an advantage in a quick driving machine and prevents the drivingof the nails occurring at a greater speed than the feed from the hopperto the race.

The invention also includes the use with the raceway of an improvedconstruction and arrangement of divider and separator for separating thelowest stud or nail in the race from the others therein and deliveringit to the driver.

In order that the invention may be clearly and readily understood,reference will be made in the following description to the accompanyingdrawing, wherein 2- Figure 1 is a front elevation of a raceway and nailseparating device constructed and arranged according to this invention,the said parts being applied to a nailing machine of known construction.Fig. 2 is a plan of said parts shown in Fig. 1. Fig. 3 is a detail frontview of the nail separating device. Fig. 4 is an end view of the same.Fig. 5 is a plan view of the nail separator or divider per .96. Figs. 3,4 and 5 are drawn to a larger scale than Figs. 1 and 2.

As the present invention is particularly concerned with the raceway andnail separating device alone, for the sake of clearness, only thoseparts of the nailing machine which are connected with or are tocooperate with the improved raceway and separator will be described andshown, it being understood that the remaining parts of the nailingmachine to which the invention is applied are of known construction.

The raceway 1 of the present invention is, as shown in Fig. 2, curved sothat the headed studs or bills are fed in under the driver a at thefront of the machine and in a direction at right angles to that in whichthey leave thenail hopper b. This curved raceway, as previouslymentioned, is not only of increased length but it turns the headed studspartly around and presents them to the driver a so that they have theirheads pointing to the center of the sole or heel 2'. e. radially, wheninserted into the work. The said race 1 is fixed by clamps 3 to theframing c of the front of the machine and can be removed therefrom atthe will of the operator and a raceway of different character, as forinstance for use with brass rivets or the like, substituted therefor,thus rendering the same machine convertible for use with two differentkinds of nails and saving the manufacturer the cost of the extra machineand factory area for the same.

The clamps 3 may be of any convenient formation and in the exampleillustrated consist of plates which are adapted to be tightened uponundercut strips 4 of the race way by means of screws or nuts 5.

The separator comprises a slide 6 having on its forward end twocuneiform fingers 7, 8 one above the other, see Fig. 3. The separatorplate or slide 6 is movable to and fro along a fixed carrier 9 attachedto or formed with the raceway 1 and is moved in one direction viz.toward the end of the raceway and the nose (Z of the machine by means ofa pivoted lever 10. The said lever 10 is pivoted on the front of thehead 6 of the machine and a roller 11 on its upper end is in contactwith a cam 12 by which it is rocked on its pivot 13. A spring f mainitains the roller in contact with the face of the cam 12. The slide orplate 6 derives its reciprocal motion from the opposite end of the lever10 by means of a wedge shaped or inclined nose 14: attached to saidlever and projecting through an opening 15 in the plate 6, see Figs. and3. The plate 6 is moved in the opposite i. e. rearward direction bymeans of a spring 16.

As shown in Fig. 4, the end of the raceway 1 is recessed or cut away at1'? so that the fingers 7, 8 of the separator slide may pass through andacross the raceway as the said slide is reciprocated. The lower finger 7being wedge shaped in character, as shown in Fig. 5, passes between thepoints of the lowest two studs or nails 2 in the race 1, as will beclearly seen upon reference to Figs. 3 and 1-. The prior entrance of thewedge shaped lower finger 7 between the nails, spaces or opens out thelower end of the second nail of the series from the first while theupper finger 8, which is likewise of a wedge shaped character,subsequently pushes between the shanks or upper parts of said nails andeffectively completes the separation and forces the first nail from offthe end of the raceway under the driver a. After this has taken place,the separator 6 is withdrawn by the spring 16 as the wedge shaped nose14 on the lever 10 swings backward. \Vhen the fingers move clear of theraceway the series of nails slide down and the next movement ofthe'plate or slide 6 repeats the separating operation. lVhen using veryshort studs, only one, the uppermost, of the separating fingers will benecessary.

As will be seen in Fig. 5, the wedge shaped fingers 7, 8 are providedwith two inclined sides coming to a chisel point so that the latter canwith facility penetrate or edge its way between the shanks of twoadjacent nails.

\Vhat I claim then is 1. In a nailing machine for inserting loose nailsin boots and shoes and comprising a driver, a raceway for the nails anda device for separating the endmost nail in the race and introducing itunder the driver, the combination with a slotted separator slide ofactuating means for the same comprising a pivoted lever, a rotating facecam to rock the lever forward, a spring to rock the lever rearward, awedge shaped nose on the lever engaging the slot in the separator slideto move the latter forward, and a spring to move the separator sliderear 'ard substantially as described.

2. In a nailing machine of the kind described, a nail raceway, a nailseparating device consisting of a slide plate arranged to move throughand across the end of the nail raceway, cuneiform fingers on said slideplate adapted to primarily separate the points and subsequently theshanks of the nails in the raceway, and mechanism consisting of apivoted lever, an inclined nose on said lever projecting through theslide plate, a cam to rock said pivoted lever and move the slide plateforward to separate the nails, and a spring to withdraw said slideplate, substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JOB LEE.

Witnesses E. N. LEWIS, GEORGE LESTER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). C.

